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1. 发明授权

US07653739B1 Controlling transfer of access to data 有权
标题翻译：控制对数据访问的传输
公开(公告)号：US07653739B1
公开(公告)日：2010-01-26
申请号：US11796215
申请日：2007-04-27
申请人： Antonius Kalker , Alan H. Karp , Ashwin Swaminathan
发明人： Antonius Kalker , Alan H. Karp , Ashwin Swaminathan
IPC分类号： G06F15/16
CPC分类号： G06Q10/06
摘要： A method for controlling transfer of data is provided. The method includes accessing data at a first device and accessing a time attribute associated with the data at the first device. The method further includes comparing the time attribute to a data transfer time threshold and in response to the time attribute associated with the data at the first device is less than the data transfer time threshold, the method further includes restricting access of the data at a second device.
摘要翻译：提供了一种用于控制数据传送的方法。该方法包括在第一设备处访问数据并访问与第一设备处的数据相关联的时间属性。该方法还包括将时间属性与数据传输时间阈值进行比较，并且响应于与第一设备处的数据相关联的时间属性小于数据传送时间阈值，该方法还包括在第二时间限制访问数据设备。

2. 发明授权

US08683072B1 Controlling frequency of data transfer 有权
标题翻译：控制数据传输的频率
公开(公告)号：US08683072B1
公开(公告)日：2014-03-25
申请号：US11796017
申请日：2007-04-25
申请人： Alan H. Karp , Ashwin Swaminathan
发明人： Alan H. Karp , Ashwin Swaminathan
IPC分类号： G06F15/16
CPC分类号： H04L63/0227 , G06F21/10 , H04N21/4627
摘要： A method for controlling frequency of data transfer of an electronic device is disclosed. A time stamp is fetched over a network connection, wherein the time stamp is not modifiable at the electronic device. The time stamp is stored at the electronic device. In response to a request to transfer digital content, it is determined whether a predetermined time interval since a most recent transfer of the digital content has elapsed.
摘要翻译：公开了一种用于控制电子设备的数据传输频率的方法。通过网络连接获取时间戳，其中时间戳在电子设备上是不可修改的。时间戳存储在电子设备上。响应于传送数字内容的请求，确定自数字内容的最新传送已经过去的预定时间间隔。

3. 发明授权

US08046838B1 Using a modulation transfer function of a device to create digital content for the device 有权
标题翻译：使用设备的调制传递功能为设备创建数字内容
公开(公告)号：US08046838B1
公开(公告)日：2011-10-25
申请号：US11799060
申请日：2007-04-30
申请人： Alan H. Karp , Ashwin Swaminathan
发明人： Alan H. Karp , Ashwin Swaminathan
IPC分类号： G06F7/04 , G06F12/14 , G06F15/16 , G06F21/00 , H04N7/167
CPC分类号： H04N21/4627 , H04N21/233 , H04N21/2343 , H04N21/8113
摘要： A modified modulation transfer function of a device is determined. The modified modulation transfer function includes intentional deviations from a nominal modulation transfer function of the device. A digital content object is modified based on the modified modulated transfer function to optimize playback of the digital content object on the device, and the modified digital content object is distributed to the device.
摘要翻译：确定装置的修改的调制传递函数。修改的调制传递函数包括与设备的标称调制传递函数有意的偏差。基于经修改的调制传递函数修改数字内容对象以优化设备上的数字内容对象的重放，并将修改的数字内容对象分发到设备。

4. 发明授权

US09582896B2 Line tracking with automatic model initialization by graph matching and cycle detection 有权
标题翻译：通过图形匹配和循环检测自动模拟初始化的线跟踪
公开(公告)号：US09582896B2
公开(公告)日：2017-02-28
申请号：US13416721
申请日：2012-03-09
申请人： Sheng Yi , Ashwin Swaminathan , Bolan Jiang , Seyed Hesameddin Najafi Shoushtari
发明人： Sheng Yi , Ashwin Swaminathan , Bolan Jiang , Seyed Hesameddin Najafi Shoushtari
IPC分类号： H04N5/225 , G06T7/20
CPC分类号： G06T7/251 , G06T2207/10016
摘要： A vision based tracking system in a mobile platform tracks objects using groups of detected lines. The tracking system detects lines in a captured image of the object to be tracked. Groups of lines are formed from the detected lines. The groups of lines may be formed by computing intersection points of the detected lines and using intersection points to identified connected lines, where the groups of lines are formed using connected lines. A graph of the detected lines may be constructed and intersection points identified. Interesting subgraphs are generated using the connections and the group of lines is formed with the interesting subgraphs. Once the groups of lines are formed, the groups of lines are used to track the object, e.g., by comparing the groups of lines in a current image of the object to groups of lines in a previous image of the object.
摘要翻译：移动平台中的基于视觉的跟踪系统使用检测到的线路组跟踪对象。跟踪系统检测要跟踪的对象的捕获图像中的线。线组由检测线形成。线组可以通过计算所检测的线的交点并使用交叉点来识别连接的线来形成，其中使用连接的线形成线组。可以构建检测到的线的图形，并确定交点。使用连接生成有趣的子图，并且组的线条与有趣的子图形成。一旦形成了一组线条，例如通过将对象的当前图像中的线组与对象的先前图像中的线组进行比较来将线组用于跟踪对象。

5. 发明申请

US20130057700A1 LINE TRACKING WITH AUTOMATIC MODEL INITIALIZATION BY GRAPH MATCHING AND CYCLE DETECTION 有权
标题翻译：通过图形匹配和循环检测进行自动模型初始化的线跟踪
公开(公告)号：US20130057700A1
公开(公告)日：2013-03-07
申请号：US13416721
申请日：2012-03-09
申请人： Sheng Yi , Ashwin Swaminathan , Bolan Jiang , Seyed Hesameddin Najafi Shoushtari
发明人： Sheng Yi , Ashwin Swaminathan , Bolan Jiang , Seyed Hesameddin Najafi Shoushtari
IPC分类号： H04N5/225 , G06K9/00
CPC分类号： G06T7/251 , G06T2207/10016
摘要： A vision based tracking system in a mobile platform tracks objects using groups of detected lines. The tracking system detects lines in a captured image of the object to be tracked. Groups of lines are formed from the detected lines. The groups of lines may be formed by computing intersection points of the detected lines and using intersection points to identified connected lines, where the groups of lines are formed using connected lines. A graph of the detected lines may be constructed and intersection points identified. Interesting subgraphs are generated using the connections and the group of lines is formed with the interesting subgraphs. Once the groups of lines are formed, the groups of lines are used to track the object, e.g., by comparing the groups of lines in a current image of the object to groups of lines in a previous image of the object.
摘要翻译：移动平台中的基于视觉的跟踪系统使用检测到的线路组跟踪对象。跟踪系统检测要跟踪的对象的捕获图像中的线。线组由检测线形成。线组可以通过计算所检测的线的交点并使用交叉点来识别连接的线来形成，其中使用连接的线形成线组。可以构建检测到的线的图形，并确定交点。使用连接生成有趣的子图，并且组的线条与有趣的子图形成。一旦形成了一组线条，例如通过将对象的当前图像中的线组与对象的先前图像中的线组进行比较来将线组用于跟踪对象。

6. 发明申请

US20120293635A1 HEAD POSE ESTIMATION USING RGBD CAMERA 有权
标题翻译：使用RGBD摄像机的头枕估计
公开(公告)号：US20120293635A1
公开(公告)日：2012-11-22
申请号：US13456061
申请日：2012-04-25
申请人： Piyush Sharma , Ashwin Swaminathan , Ramin Rezaiifar , Qi Xue
发明人： Piyush Sharma , Ashwin Swaminathan , Ramin Rezaiifar , Qi Xue
IPC分类号： G06K9/20 , G06K9/48 , H04N13/02 , G06K9/46
CPC分类号： G06K9/00234 , G06T7/73 , G06T2207/10016 , G06T2207/10024 , G06T2207/10028 , G06T2207/30201
摘要： A three-dimensional pose of the head of a subject is determined based on depth data captured in multiple images. The multiple images of the head are captured, e.g., by an RGBD camera. A rotation matrix and translation vector of the pose of the head relative to a reference pose is determined using the depth data. For example, arbitrary feature points on the head may be extracted in each of the multiple images and provided along with corresponding depth data to an Extended Kalman filter with states including a rotation matrix and a translation vector associated with the reference pose for the head and a current orientation and a current position. The three-dimensional pose of the head with respect to the reference pose is then determined based on the rotation matrix and the translation vector.
摘要翻译：基于在多个图像中捕获的深度数据来确定被摄体头部的三维姿态。头部的多个图像例如通过RGBD照相机被捕获。使用深度数据确定头部相对于参考姿势的姿态的旋转矩阵和平移向量。例如，可以在多个图像的每一个中提取头上的任意特征点，并将其与相应的深度数据一起提供给扩展卡尔曼滤波器，该扩展卡尔曼滤波器的状态包括旋转矩阵和与头部的参考姿势相关联的平移矢量，当前方向和当前位置。然后基于旋转矩阵和平移向量来确定头部相对于参考姿势的三维姿态。

7. 发明申请

US20120062702A1 ONLINE REFERENCE GENERATION AND TRACKING FOR MULTI-USER AUGMENTED REALITY 有权
标题翻译：在线参考生成和追踪用于多用户的现实
公开(公告)号：US20120062702A1
公开(公告)日：2012-03-15
申请号：US13082187
申请日：2011-04-07
申请人： Bolan Jiang , Ashwin Swaminathan , Serafin Diaz Spindola , Dheeraj Ahuja , Charles Wheeler Sweet, III , Prasun Choudhury
发明人： Bolan Jiang , Ashwin Swaminathan , Serafin Diaz Spindola , Dheeraj Ahuja , Charles Wheeler Sweet, III , Prasun Choudhury
IPC分类号： H04N5/262 , H04N13/02
CPC分类号： G06T7/74 , G06T19/006 , G06T2207/10004 , G06T2207/30244
摘要： A multi-user augmented reality (AR) system operates without a previously acquired common reference by generating a reference image on the fly. The reference image is produced by capturing at least two images of a planar object and using the images to determine a pose (position and orientation) of a first mobile platform with respect to the planar object. Based on the orientation of the mobile platform, an image of the planar object, which may be one of the initial images or a subsequently captured image, is warped to produce the reference image of a front view of the planar object. The reference image may be produced by the mobile platform or by, e.g., a server. Other mobile platforms may determine their pose with respect to the planar object using the reference image to perform a multi-user augmented reality application.
摘要翻译：多用户增强现实（AR）系统通过即时生成参考图像而无需先前获取的公共参考。通过捕获平面物体的至少两个图像并使用图像来确定第一移动平台相对于平面对象的姿势（位置和方位）来产生参考图像。基于移动平台的方向，可以将平面对象的图像（其可以是初始图像之一或随后的拍摄图像）扭曲，以产生平面对象的前视图的参考图像。参考图像可以由移动平台或者例如由服务器产生。其他移动平台可以使用参考图像来确定其相对于平面对象的姿态来执行多用户增强现实应用。

8. 发明申请

US20120027290A1 OBJECT RECOGNITION USING INCREMENTAL FEATURE EXTRACTION 有权
标题翻译：使用增强特征提取的对象识别
公开(公告)号：US20120027290A1
公开(公告)日：2012-02-02
申请号：US13193294
申请日：2011-07-28
申请人： Pawan Kumar Baheti , Sundeep Vaddadi , Ashwin Swaminathan , Yuriy Reznik , Onur C. Hamsici , Murali Ramaswamy Chari , John H. Hong , Chong Uk Lee
发明人： Pawan Kumar Baheti , Sundeep Vaddadi , Ashwin Swaminathan , Yuriy Reznik , Onur C. Hamsici , Murali Ramaswamy Chari , John H. Hong , Chong Uk Lee
IPC分类号： G06K9/62
CPC分类号： G06K9/6857 , G06K9/4671
摘要： In one example, an apparatus includes a processor configured to extract a first set of one or more keypoints from a first set of blurred images of a first octave of a received image, calculate a first set of one or more descriptors for the first set of keypoints, receive a confidence value for a result produced by querying a feature descriptor database with the first set of descriptors, wherein the result comprises information describing an identity of an object in the received image, and extract a second set of one or more keypoints from a second set of blurred images of a second octave of the received image when the confidence value does not exceed a confidence threshold. In this manner, the processor may perform incremental feature descriptor extraction, which may improve computational efficiency of object recognition in digital images.
摘要翻译：在一个示例中，设备包括处理器，其被配置为从接收到的图像的第一个八度音阶的第一组模糊图像中提取一个或多个关键点的第一组，计算第一组的一个或多个描述符关键点，通过用第一组描述符查询特征描述符数据库而产生的结果的置信度值，其中结果包括描述接收到的图像中的对象的身份的信息，并且从一个或多个关键点中提取一个或多个关键点的第二组当置信度值不超过置信度阈值时，接收图像的第二倍频程的第二组模糊图像。以这种方式，处理器可以执行增量特征描述符提取，这可以提高数字图像中对象识别的计算效率。

9. 发明授权

US07814108B2 Search engine platform 有权
标题翻译：搜索引擎平台
公开(公告)号：US07814108B2
公开(公告)日：2010-10-12
申请号：US12058001
申请日：2008-03-28
申请人： Darko Kirovski , Ashwin Swaminathan , Cherian Varkey Mathew
发明人： Darko Kirovski , Ashwin Swaminathan , Cherian Varkey Mathew
IPC分类号： G06F17/30
CPC分类号： G06F17/30864 , G06F17/30675
摘要： Systems and methods to perform efficient searching for web content using a search engine are provided. In an illustrative implementation, a computing environment comprises a search engine computing application having an essential pages module operative to execute one or more selected selection algorithms to select content from a cooperating data store. In an illustrative operation, the exemplary search engine executes on a received search query to generate search results. Operatively, the retrieved results can be generated based upon their joint coverage of the submitted search query by deploying a selected sequential forward floating selection (SFFS) algorithm executing on the essential pages module. In the illustrative operation, the SFFS algorithm can operate to iteratively add one and delete one element from the set to improve a coverage score until no further improvement can be attained. The resultant processed search results can be considered essential pages.
摘要翻译：提供了使用搜索引擎执行有效搜索Web内容的系统和方法。在说明性实现中，计算环境包括搜索引擎计算应用，其具有可操作以执行一个或多个所选择的选择算法以从协作数据存储中选择内容的基本页面模块。在说明性操作中，示例性搜索引擎在接收到的搜索查询上执行以产生搜索结果。可操作地，可以基于通过部署在基本页面模块上执行的选择的顺序前向浮动选择（SFFS）算法对所提交的搜索查询的联合覆盖来生成检索结果。在说明性操作中，SFFS算法可以操作以迭代地添加一个元素并从集合中删除一个元素以提高覆盖分数，直到不能获得进一步的改进。所得到的处理后的搜索结果可以被认为是必不可少的页面。

10. 发明申请

US20090164426A1 SEARCH ENGINE PLATFORM 有权
标题翻译：搜索引擎平台
公开(公告)号：US20090164426A1
公开(公告)日：2009-06-25
申请号：US12058001
申请日：2008-03-28
申请人： Darko Kirovski , Ashwin Swaminathan , Cherian Varkey Mathew
发明人： Darko Kirovski , Ashwin Swaminathan , Cherian Varkey Mathew
IPC分类号： G06F7/06
CPC分类号： G06F17/30864 , G06F17/30675
摘要： Systems and methods to perform efficient searching for web content using a search engine are provided. In an illustrative implementation, a computing environment comprises a search engine computing application having an essential pages module operative to execute one or more selected selection algorithms to select content from a cooperating data store. In an illustrative operation, the exemplary search engine executes on a received search query to generate search results. Operatively, the retrieved results can be generated based upon their joint coverage of the submitted search query by deploying a selected sequential forward floating selection (SFFS) algorithm executing on the essential pages module. In the illustrative operation, the SFFS algorithm can operate to iteratively add one and delete one element from the set to improve a coverage score until no further improvement can be attained. The resultant processed search results can be considered essential pages.
摘要翻译：提供了使用搜索引擎执行有效搜索Web内容的系统和方法。在说明性实现中，计算环境包括搜索引擎计算应用，其具有可操作以执行一个或多个所选择的选择算法以从协作数据存储中选择内容的基本页面模块。在说明性操作中，示例性搜索引擎在接收到的搜索查询上执行以产生搜索结果。可操作地，可以基于通过部署在基本页面模块上执行的选择的顺序前向浮动选择（SFFS）算法对所提交的搜索查询的联合覆盖来生成检索结果。在说明性操作中，SFFS算法可以操作以迭代地添加一个元素并从集合中删除一个元素以提高覆盖分数，直到不能获得进一步的改进。所得到的处理后的搜索结果可以被认为是必不可少的页面。

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